(R) 5.6A Science STAAR (Uses of Energy)

Front

What is mechanical energy?

Back

Mechanical energy is the energy that an object has due to its motion or position. It can be kinetic (energy of motion) or potential (stored energy).

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total energy of all the particles in an object.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons. It is used to power devices and appliances.

Front

What is light energy?

Back

Light energy is a form of energy that is visible to the human eye. It is produced by the vibrations of electrically charged particles.

Front

What is the relationship between energy and heat?

Back

Heat is a form of energy that is transferred between objects due to a temperature difference. It is often produced when energy is converted from one form to another.

Front

What is the purpose of using protective gloves when handling hot objects?

Back

Protective gloves are used to prevent burns and injuries caused by thermal energy from hot objects.

Front

What types of energy does a fan produce?

Back

A fan primarily produces mechanical energy to move air, and it can also produce heat due to electrical resistance.

Front

What is the role of a lightbulb in a toy oven?

Back

A lightbulb in a toy oven provides electrical energy that is converted into thermal energy to bake the cakes.

Front

What is the energy source for electrical devices?

Back

The energy source for electrical devices is typically electrical energy, which can come from batteries or power outlets.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is the energy of motion, while potential energy is stored energy based on an object's position or state.